Harrington, WA Climate: Temperature & Rain by Month
Explore NOAA NCEI's 1991–2020 climate normals → and a clearly labeled PlainClimate comfort calculation
30-year climate normals (1991-2020) from Harrington's primary NOAA station, HARRINGTON.
The climate verdict for Harrington
Dryness leads the climate profile for Harrington, Washington, with 12.6 inches of precipitation a year. NOAA records an annual average of 47°F. At 49/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 18% of scores.
- 47°F
- yearly average temperature, NOAA normal
- 49/100
- comfort score, above 18% of station-mapped location scores
- 12.6"
- annual precipitation · 24" snow
- 104 days
- growing season, frost-free days
Harrington: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00453515 · Harrington, WA 47°F mean · 12.6" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-DRY · SWING-MID · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 47°F
- RANK-COOL #1,921
- PHOTO-FINISH ≈ Cheesman
- PRCP-DRY 12.6"
- SWING-MID 39°F
- COMF-LOW 49/100
- LOAD-HEAT 6,768 HDD
- STN-1 USC00453515
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Cheesman, CO (+ 0 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every WA station list.
- Harrington (this station) 47°F
- Cold Meyersdale, PA 47°F
- Hot Porthill, ID 47°F
- Near Cheesman, CO 47°F
- Near Hidden Valley, PA 47°F
Climate Living Index · Harrington
Harrington: 26/100 · grade F
Harrington publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Harrington, not an official NOAA rating. Rankings still use Comfort Score 49/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Snowfall burden | 23.5 inches/year | 45/100 · D |
| Normal heat + freeze calendar | 171 calendar days | 31/100 · F |
| Annual temperature balance | 47.2°F · 20.3° from 67.5°F | 28/100 · F |
| Precipitation balance | 12.6 in · 22.4 from 35 in | 20/100 · F |
| Frost-free season | 104 days/year | 0/100 · F |
Harrington · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Harrington is a continental Köppen climate: Dsb
Coldest-month mean 28.0°F and warmest-month mean 67.1°F place this station in continental, dry-summer, warm summer climates (Dsb). Class Dsb is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, dry-summer, warm summer.
- Köppen code
- Dsb
- Group
- Continental
- Warmest month
- 67.1°F
- Coldest month
- 28.0°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where Harrington sits across the climate record
Three NOAA fields for Harrington's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 72%
- Among 6,861 stations, Harrington sits in the cooler third of annual means.
- Annual precipitation
- Drier than 88%
- Harrington's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- 31st percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Harrington compares across U.S. station-mapped locations
Harrington's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
49 18th percentile score exceeds 18% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). This entry sits in this band.
- 50–60: 1,329 station-mapped locations (21%). Above this entry.
- 60–70: 1,236 station-mapped locations (20%). Above this entry.
- 70–80: 650 station-mapped locations (11%). Above this entry.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Harrington's measured station temperature trend
MethodologyAcross 47 complete annual observations from 1962 to 2019, HARRINGTON warmed at a fitted rate of 0.12°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Harrington primary station fitted change +0.12 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 35°F (2°C) | 23°F (-5°C) | 29°F (-2°C) | 1.6" | 7.8" | 27.5 | 0.0 |
| February | 41°F (5°C) | 25°F (-4°C) | 33°F (0°C) | 1.1" | 3.3" | 23.5 | 0.0 |
| March | 51°F (11°C) | 29°F (-1°C) | 40°F (5°C) | 1.4" | 1.4" | 22.2 | 0.0 |
| April | 60°F (15°C) | 33°F (0°C) | 46°F (8°C) | 1.0" | 0.2" | 15.5 | 0.0 |
| May | 69°F (21°C) | 40°F (4°C) | 54°F (12°C) | 1.1" | 0.0" | 6.6 | 0.1 |
| June | 75°F (24°C) | 44°F (7°C) | 60°F (15°C) | 0.9" | 0.0" | 1.0 | 1.6 |
| July | 85°F (30°C) | 49°F (9°C) | 67°F (19°C) | 0.4" | 0.0" | 0.2 | 9.6 |
| August | 85°F (30°C) | 49°F (9°C) | 67°F (19°C) | 0.3" | 0.0" | 0.5 | 8.4 |
| September | 76°F (24°C) | 42°F (6°C) | 59°F (15°C) | 0.4" | 0.0" | 3.3 | 1.6 |
| October | 60°F (16°C) | 34°F (1°C) | 47°F (8°C) | 1.2" | 0.1" | 14.5 | 0.0 |
| November | 44°F (7°C) | 28°F (-2°C) | 36°F (2°C) | 1.5" | 3.4" | 21.3 | 0.0 |
| December | 34°F (1°C) | 22°F (-6°C) | 28°F (-2°C) | 1.8" | 7.3" | 28.1 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 88°F around July 28, short of 90°F on every date, while 171 dates carry a normal low at or below freezing, the coldest 21°F near December 22.
The freezing stretch
The normal low stays at or below 32°F into April 10, then returns to freezing around October 23, covering 171 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
Where the wet dates fall
The likeliest wet date is November 23, when 36% of years recorded at least a hundredth of an inch. The driest is August 15 at 8%. Summed across the calendar, that is about 84 wet dates a year.
The widest day
July 26 carries the biggest normal gap between afternoon and dawn, 38°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Harrington.
Where Harrington Stands Nationally
Day-to-night contrast is extreme by national standards — the widest normal daily swing reaches about 38°F, sharper than nine in ten ranked stations see.
A drier-than-most normal water year — around 13 inches, below what four out of five ranked stations collect.
Harrington earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 7.8"
10.4 days with precipitation
Snow: 3.3"
7.8 days with precipitation
Snow: 1.4"
9.5 days with precipitation
Snow: 0.2"
6.8 days with precipitation
7.1 days with precipitation
5.6 days with precipitation
2.8 days with precipitation
2.6 days with precipitation
3.4 days with precipitation
Snow: 0.1"
7.0 days with precipitation
Snow: 3.4"
10.7 days with precipitation
Snow: 7.3"
10.2 days with precipitation
Harrington's wet season runs through the cold months
December, January and February carry 35% of the year's precipitation here, while June through August contribute 13%. That is the cool-season-dominant pattern of the West Coast and the higher inland West, where storm tracks swing south in winter and summer turns dry; the thermometer meanwhile shows a 39.1°F seasonal spread.
- Wettest month
- December, 1.8"
- Driest month
- August, 0.3"
- Wettest three months
- December, January, November (39% of the year)
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A cool-season label means the December-February share reaches 35%. Where snow falls, the monthly figures above report liquid-equivalent precipitation, so a wet winter month is not necessarily a rainy one.
Harrington is dry, and what does fall arrives gently
Only about 84 days a year record measurable precipitation here, 23% of the calendar, and they carry 12.6" between them. At roughly 0.15 inches on an average wet day, this is not the damp drizzle of a marine climate; it is an arid record in which precipitation is both uncommon and light when it appears.
The wettest month by count is November at about 11 wet days; the driest is August at about 3.
A low per-event average in a dry record is a statement about typical days only. Arid regions can still take a large share of a year's total from a single convective storm, which a normal cannot show.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, not the extremes within it.
Winter brings real snow to Harrington
Harrington averages 23.5 inches of snowfall a year, with January the snowiest month on the normals, spread across roughly 18 days that record measurable snow. That is depth accumulating on the ground, which is why it can exceed the annual precipitation figure: precipitation counts the liquid the snow melts down to, and fresh snow is mostly air.
- Annual snowfall: 23.5 inches of depth.
- Days recording measurable snow: about 18 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 19% of the year's precipitation.
NOAA 1991-2020 normals. The ten-to-one ratio is a convention, not a measurement: real ratios vary with temperature, so treat the share as an order of magnitude rather than an exact split.
Frost Dates & Growing Season
First Fall Freeze
September 12
50% probability date
Last Spring Freeze
May 31
50% probability date
Growing Season
104 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
6,768
Higher = more heating needed
Cooling Degree Days
290
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside WA closest to Harrington on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (47°F here).
- Amboy, MN 47°F · 0.0°F off
- Burton, MI 47°F · 0.0°F off
- Concord, NH 47°F · 0.0°F off
- Fort Atkinson, WI 47°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (12.6" here), excluding temperature-peer places.
- Valier, MT 12.6" · 0.0" off
- Conrad, MT 12.6" · 0.0" off
- Maybell, CO 12.6" · 0.0" off
- Palmer, AK 12.6" · 0.0" off
Snow and freeze rhythm
When cold and snow define Harrington
heating led · dry · mid swing
Harrington's energy balance leans toward cold weather: 6,768 annual heating degree days against 290 for cooling. Its 39.1°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 104 days are frost-free in a normal year. That short interval is consistent with the cold-season signal, but the measure does not predict the exact first or last freeze in any one year.
-
1. Harrington coldest normal
December
The monthly mean of 28°F (-2°C) sits near freezing, so cold nights and above-freezing afternoons share the same month.
-
2. Harrington typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Harrington snow peak
January
Harrington averages 23.5 inches of snow a year, with January the snowiest month on the normals.
Questions about Harrington's climate
How much snow does Harrington get? ▼
How cold does Harrington get in winter? ▼
How much energy does heating and cooling require in Harrington? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Harrington's primary station: HARRINGTON (USC00453515). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as an incorporated place (GEOID 5329745). Match rule for Harrington: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for Harrington comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.